I found a used Model 70 at the other day in 220 Swift. It is the heavy barrel stainless with choate varmint stock. Don't know much about Winchesters I prefer Savage but would like to get your 2cents. asking price is $660 no scope. Can't tell how many rounds have been through it. I did notice the front of the bolt between the lugs is slightly smaller dia the the main section of the bolt, is this normal?